Keeper for locks and latches.



UNIT STATES PATENT HENRY G. VOIGHT, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO THE RUSSELL d: ERIVIN MANUFACTURING COMPANY, OF SAME PLACE.

KEEPER FOR LOCKS AND LATCHES.

SPECIFICATION formingpart of Letters Patent No. 648,471, dated May 1, 1900.

7 Application filed N vember I, 1899- Serial No. 736,092. (No model.)

To all whom it may concern.-

Be it known that I, HENRY G. VOIGHT, a citizen of the United States, residing in New Britain, in the county of Hartford and State of Connecticut,have invented certain new and useful Improvements in Keepers for Locks and Latches, of which the following is a specification.

My invention relates to improvements in keepers for a combined lock and latch; and the main object of my invention is to so form the keeper that it may serve as a templet or marker for marking the centers of the holes to bebored in putting on the look.

In the accompanying drawings, Figure 1 is a face View of my keeper; and Fig. 2 is a'diagrammatic perspective view of a portion of a door, showing the manner of marking off the centers of the several holes.

The main portion of the keeper is of an ordinary form, with the strike-wing 3 and latch and bolt mortises 4 and 5. I prefer to make the keeper and the face-plate of the lock with rounded ends, as shown by full lines in Fig. 1; but, if desired, they may have square ends, as shown by the broken lines at the lower end of said Fig. 1. Said keeper is also provided with the ordinary screw-holes 6, by which to secure it in place. On the edge 7 I form a series of gages or points 8 at equal distances apart, the upper and lower points in said series being preferably in transverse alinement with the screw-holes 6. Said points 8 are also a distance apart about equal to the width of the keeper. The face-plate of the lock, which is not shown, should have the same contour as the keeper. On the edge 9 of the lockkeeper, from which the wing 3 projects, I form, preferably, four gages, points, or spurs 10, 11, 12, and 13; The upper and lower edges of the wing 3 form gaging-shoulders projecting from the edge 9 of the keeper, with reference to which shoulders the said points or spurs are located. The points 10 and 12 are respectively located at five-eighths and seven-eighths of an inch from the adjacent shoulder and are designed for gaging off the middle line of doors that are one and a quarter and one and three-quarters inches thick. The points 11 and 13 are located at three-quarters and one inch, respectively, from the adjacent shoulderfor marking the middle line of doors one and a half and two inches thick. The keeper may be used substantially after the manner of an ordinary marking-gage to mark the middle line on a door-as, for example, the line 14:, Fig. 2,.which figure represents a door D one and three-quarters inches thick. If the keeper were held with its edge 9 parallel to the face of the door, the mark of both points 10 and 12 instead of only one would show on the edge of the door; but of course if the door is one and three-quarters inches thick only one of the said marks would be the middle line and which one'of the two was the middleliue would be readily observed. By tipping the keeper a little out of parallel to the face of the door one can, if desired, use the keeper to mark only one line on the door from either of the two points 10 and 12 or the two points 11 and 13 without making any material diderence in the location of the line thus marked. sented as having been marked with the point 12. The said line should be nearly as long as the keeper. After marking the proper middle line the series of points 8 are placed thereon and forced into the wood to mark the centers 15 for boring the holes for the face-plate mortise. The latch and lock bolt mortises 4t and 5 in the keeper are made with special reference to serve as gages for locating thecenters for boring the keyhole and hole for the knob-spindle in the door. As shown, the lock-bolt mortise is of a length Vertically equal to the distance from the lower one of the centers 15 for boring the face-plate mortise to. the proper height for the center for boring the keyhole.

In the diagram Fig. 2 the contour of the lock-bolt mortise 5 in the keeper is indicated in broken lines, with its lower end at the lower one of the centers 15, while its upper end extends to the line 16. In practice oneplaces the keeper on the edge of the door D, with the bottom end of the lock-mortise even with the lower one of the centers 15, and then In Fig. 2 the line 141$ repre marks a transverse line at the upper end of across to the face of the door from the line 16 and then squaring along therefrom on the face of the door for the proper distance, as

by the line 17, the height of the keyhole-center is properly located. The center for the knob-spindle is then located vertically by placing the keeper on the edge of the door,

with the lower end of the lock-bolt mortise 5 on the line 16, and then marking the door from the upper end of the latch-bolt mortise 4 to mark the line 18, which. by squaring as before will produce the line 19, that'l'ocates the height of thecenter for the knob-spindle;

; On the edge 9 of the keeper is a gage point for the door and the distance of the knobspindle center and keyhole-center from the edge of the door by means of shoulders and spurs on the edge of the'keeper, andI locate the height of the said knob-spindle centerand keyhole-center by means of gages in the.

- keeper.

I also locate thecenters of the'holes for the face-plate mortise by spurs onthe edge of the keeper and locate the aforesaid knob-spindle and keyholecenters from one of the centers for the said face-plate mortise. The spurs or points are made. so fine and sharp that they readily sink into the WOOd'lIl the keeper-mortise and form no. inconven ience in putting on the keeper.

It is apparent that some changes tially as described.

from the specific-construction herein disclosed maybe. v a

made, and thereforeI do notwi sh to be understood as limiting myself'to' the precise form of construction shown and described, but desire the libertyto make such changes in working my inventionas may fairly come within the spirit and scope of the same.

I claim as my invention- I .1. A keeper for locks having on one edge marking spur-gages and gaging-shoulders for marking the middle line of doors of various thicknesses, substantially as described.

r 2. A keeper for looks having gages for laying out the lock-mortisefon ,the edge of the door, and also having gages for marking the height of the keyhole "and knob-spindle centers relatively to thesaid lock-mortise, substantially as described.

k 3. A keeper for locks having on one edge a strike-wing forming'a shoulder and amarking spur-gage at the proper distance from the shoulder. of the said wing for marking 0E the distance of the'keyhole' and knob -spindle centers from the edge of the door, substan- 4. A keeper for locks having on one edge aseriesof spur-gages for marking the centers for boring the holes of the face-plate mortise and also having a gage for marking the height of the keyhole-center from one of the said centers, substantially as described.

5. Akeeper for locks-having the several gages for laying out the centers for boring the mortise-holes on the edge of the door and the knob-spindle and keyhole centers on the side of the door, substantially as described.

I HENRY G. VOIGHT.

' Witnesses: V

M. S. WIARD,

P. M. BRONSON. 

